| 摘要 |
PURPOSE:To remarkably lessen the generated amount of a radioactive solid waste product compared with a conventional method by using an org. acid for a cation exchange resin and an org. base for an anion exchange resin as each regenerant and subjecting the spent regenerant to decomposition treatment. CONSTITUTION:The ion exchange resin which has been to the condenser cleaning of a nuclear power plant and is captured a radioactive corrosion product and the impurities of other ion component, has brought into contact with the regeneant to separate the impurities and to regenerate the resin. At that time, each aq. soln. of org. acid (e.g. oxalic acid) and org. base (e.g. tetramethyl- ammonium hydroxide) is used as the regenerant for the cation exchange resin and the anion exchange resin. The spent regenerant generating by the regeneration is subjected to a decomposition treatment with electrolysis equipment 16. In such a way, the radioactive corrosion product and the impurities of dissolved ions captured by the ion exchange resin are separated efficiently to regenerate the resin, and the generated amount of the radioactive solid waste product is lessened remarkably compared with the conventional method. |
